Extraction and Antioxidant Activity of Total Polyphenols from Ampelopsis grossedendata
The extraction and antioxidant activity of total polyphenols from Ampelopsis grossedendata were studied in this paper.The optimal extraction conditions were achieved to be extraction at 75 ℃ for 1.5 h with a 25-role volume of 50％ acetone aqueous solution as the extraction solvent.Under the optimal extraction conditions, the yield of total polyphenols was 21.82％.Total polyphenols from Ampelopsis grossedendata showed high reducing power and excellent scavenging effect on hydroxyl,superoxide anion and DPPH free radicals in a dose-dependent manner.
国家科技期刊平台
NSTL
万方数据
维普
